Apple of Peru (Nicandra physalodes)
Description: An annual weed in the tomato family, reproducing only by seed. Weeds continuously (spring, summer, and fall) in agriculture fields if sufficient moisture is available.
Life Cycle: Hardy annual
Habitat: Soybean and vegetable fields
Flower: Pale violet bell-shaped flower
Fruit: Enclosed in papery inflated calyxes
Leaves: Jagged full leaves
Root: Short taproot
The problem is…. a prolific seed producer. Large, persistent seed-banks quickly accumulate in the soil due to seed dormancy. Very competitive with soybeans and vegetable crops also has a low sensitivity to most commonly used herbicides.